US PATENT SUBCLASS 110 / 234
.~ With boiler

Current as of: June, 1999
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110 /   HD   FURNACES

233  DF  COMBINED {1}
234.~ With boiler

DEFINITION

Classification: 110/234

With boiler:

(under subclass 233) Apparatus wherein the addition apparatus is a liquid heater or vaporizer.

SEE OR SEARCH CLASS

122, Liquid Heaters and Vaporizers,

2, for significant boiler structure combined with an incinerator or solid fuel burning apparatus.